Remove the filtered RPMs from module metadata even in case all RPMs are filtered out.

Signed-off-by: Jan Kaluza <jkaluza@redhat.com>

tests/test_gather_source_module.py

@@ -0,0 +1,63 @@
+# -*- coding: utf-8 -*-
+
+import mock
+import os
+import sys
+import unittest
+
+try:
+    import gi # noqa
+    gi.require_version('Modulemd', '1.0') # noqa
+    from gi.repository import Modulemd # noqa
+    import pdc_client       # noqa
+    HAS_MODULE_SUPPORT = True
+except ImportError:
+    HAS_MODULE_SUPPORT = False
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from pungi.phases.gather.sources.source_module import GatherSourceModule
+from tests import helpers
+
+
+@unittest.skipUnless(HAS_MODULE_SUPPORT, 'Skipped test, no module support.')
+class TestGatherSourceModule(helpers.PungiTestCase):
+    def setUp(self):
+        super(TestGatherSourceModule, self).setUp()
+
+        self.compose = helpers.DummyCompose(self.topdir, {})
+        self.compose.DEBUG = False
+        self.mmd = self.compose.variants["Server"].add_fake_module(
+            "testmodule:master:1:2017", rpm_nvrs=["pkg-1.0.0-1"])
+
+        mock_rpm = mock.Mock(version='1.0.0', release='1',
+                             epoch=0, excludearch=None, exclusivearch=None,
+                             sourcerpm='pkg-1.0.0-1', nevra='pkg-1.0.0-1')
+        mock_rpm.name = 'pkg'
+        self.compose.variants['Server'].pkgset.rpms_by_arch['x86_64'] = [mock_rpm]
+
+    def test_gather_module(self):
+        source = GatherSourceModule(self.compose)
+        packages, groups = source("x86_64", self.compose.variants["Server"])
+        self.assertEqual(len(packages), 1)
+        self.assertEqual(list(packages)[0][0].nevra, "pkg-1.0.0-1")
+        self.assertEqual(len(groups), 0)
+
+        variant = self.compose.variants["Server"]
+        arch_mmd = variant.arch_mmds["x86_64"]["testmodule-master"]
+        self.assertEqual(set(arch_mmd["data"]["artifacts"]["rpms"]),
+                         set(["pkg-1.0.0-1"]))
+
+    def test_gather_filtered_module(self):
+        filter_set = Modulemd.SimpleSet()
+        filter_set.add("pkg")
+        self.mmd.set_rpm_filter(filter_set)
+
+        source = GatherSourceModule(self.compose)
+        packages, groups = source("x86_64", self.compose.variants["Server"])
+        self.assertEqual(len(packages), 0)
+        self.assertEqual(len(groups), 0)
+
+        variant = self.compose.variants["Server"]
+        arch_mmd = variant.arch_mmds["x86_64"]["testmodule-master"]
+        self.assertEqual(len(arch_mmd["data"]["artifacts"]["rpms"]), 0)